brake MERCEDES-BENZ S CLASS 2019 Workshop Manual

#Do not activatethe HOLD function.
#DeactivateActive Brake Assist (→page 200).
#Shiftthe automatic transmissiontoposition\\.
#Releasethe electric parking brake.
&WARNINGRisk of accident duetolimi‐ted safety-related functions duringthetowing process
Safety-related functions are limited or no lon‐geravailable inthefollowing situations:
Rthe ignition is switched off.
Rthe brake system or powersteering sys‐tem is malfunctioning.
Rthe energy supply orthe on-board electri‐cal system is malfunctioning.
Whenyourvehicle isthentowedaway, signif‐icantly more effortmay berequiredtosteerand brakethan is normallyrequired.
#Use atow bar.
#Make surethatthesteering wheel canmovefreely, beforetowingthevehicleaway.
*NOTEDamageduetoexcessive tractivepower
Ifyou pullawaysharply,the tractive powermay betoo high andthevehicles could bedamaged.
#Pullawayslowly and smoothly.
Loading thevehiclefor transport
#Observethe notes ontowingaway(→page 426).
#Connectthetow bartothetowingeyetoloadthevehicle.
#Shiftthe automatic transmissiontoposition\\.
%The automatic transmission may be lockedin position]intheevent of damagetotheelectrics.Toshiftto\\, providethe on-
board electrical system with power(→page 423).
#Loadthevehicle ontothe transporter.
#Shiftthe automatic transmissiontoposition].
#Usethe electric parking braketosecurethevehicle againstrollingaway.
#Only securethevehiclebythe wheels.
Vehicles with ADS PLUS (Adaptive DampingSystem PLUS)
&WARNINGRisk of an accident whentransportingvehicles withAdaptiveDamping System PLUS
Thereduced dampingforces onthevehiclebeing transported can causethevehicle/trailer combinationtostarttoswing.
As aresult, when transportingvehicles withtheAdaptive Damping System PLUS,thevehicle/trailer combination maystarttoskid.Consequently,you could lose control ofyourvehicle.
#When transporting, ensurethat:
Breakdown assistance427

CountryRadio type approval number
USAFCC ID: MRXGG4T
FCC ID: MRXDG6W2D4
FCC ID: MRXMC34MA4
This device complies withPart15ofthe FCCRules. Operation issubjecttothefollowing two con‐ditions:
(1) This device may not causeharmful interference, and
(2) This device mustaccept anyinterferencereceived, includinginterferencethat may cause
undesired operation.
Loadingthevehicle
Notes onTireand Loading Information plac‐ard
&WARNINGRisk of accident fromoverloa‐ded tires
Overloaded tires mayoverheat and burstas aconsequence. Overloaded tires can alsoimpairthesteering and handlingcharacteris‐tics and leadtobrakefailure.
#Observethe load-bearing capacity ofthe tires.
#The load-bearing capacity must be atleast halfthe gross axleweightrating ofthevehicle.
#Neveroverloadthe tiresby exceedingthe maximum load.
TheTireand Loading Information placard is onthe B-pillar onthe driver's side ofthevehicle.
1Tireand Loading Information placard
442Wheels and tires

these are installed onthevehicle, but does notinclude passengers or luggage.
Maximum tire load:the maximum tire load isthe maximum permissibleweight in kilograms orlbsfor whicha tire is approved.
Maximum permissible tire pressure:maxi‐mum permissible tire pressurefor one tire.
Maximum load on one tire:maximum load onone tire. This is calculatedbydividingthe maxi‐mum axle load of one axlebytwo.
PSI (pounds per square inch):standard unit ofmeasurementfor tire pressure.
Aspectratio:ratio between tire height and tirewidth in percent.
Tirepressure:pressure insidethe tire applyingan outwardforcetoeverysquare inch ofthe tire.The tire pressure is specified in pounds persquare inch (psi), in kilopascals (kPa) or in bar.The tire pressure should only be corrected whenthe tires are cold.
Cold tire pressure:the tires are cold whenthevehicle has been parkedfor at least3 hours
without direct sunlight onthe tires orthevehiclehas been drivenfor lessthan 1 mile (1.6 km).
Tirecontact surface:the part ofthe tirethatcomes into contact with theroad.
Tirebead:the purpose ofthe tire bead istoensurethatthe tire sits securely onthe wheelrim. There are several wire cores inthe tire beadtopreventthe tire fromchanging length onthewheelrim.
Sidewall:the part ofthe tire betweenthe treadandthe tire bead.
Weight of optional equipment:the combinedweight ofthe optional equipmentweighing morethanthereplacedstandard parts and morethan5 lbs (2.3kg).This optional equipment, such ashigh-performance brakes, level control system, aroof luggagerackor high-performance batteries,is not included inthe curbweight andtheweightofthe accessories.
TIN (Tire IdentificationNumber):a uniqueidentification number which can be usedby atire manufacturertoidentify tires,forexample,in a productrecall, andthus identifythe pur‐chasers. The TIN is made up ofthe manufactur‐
er's identity code, tire size, tire type code andthe manufacturing date.
Load-bearing index:the load-bearing index is acodethat containsthe maximum load-bearingcapacity of a tire.
Traction:traction isthe gripresulting from fric‐tion betweenthe tires andtheroad surface.
Wear indicator:narrowbars (treadwear bars)that are distributedoverthe tire contact surface.Ifthe tire tread is level withthe bars,thewearlimit of 1/16in (1.6 mm) has beenreached.
Distribution ofvehicle occupants:distributionofvehicle occupantsover designated seat posi‐tions in avehicle.
Maximum permissible payloadweight:nomi‐nal load and luggage load plus150 lb (68kg)multipliedbythe number of seats inthevehicle.
Wheels and tires453

Changing a wheel
Notes on selecting, installing andreplacingtires
Mercedes-AMGvehicles:observethe notes inthe Supplement. Otherwise,you may notrecog‐nize dangers.
You can askfor informationregarding permittedwheel/tire combinations at an authorizedMercedes-Benz Center.
&WARNINGRisk of accident duetoincor‐rect dimensions of wheels and tires
If wheels and tires ofthe wrong size areinstalled,the wheel brakes or wheel suspen‐sion components may be damaged.
#Alwaysreplace wheels and tires withthosethat fulfillthe specifications ofthe original part.
Whenreplacing wheels, make suretofitthecorrect:
RDesignation
RModel
Whenreplacing tires, make suretoinstallthecorrect:
RDesignation
RManufacturer
RModel
&WARNINGRisk of injurythroughexceed‐ingthe specified tire loadrating orthepermissible speedrating
Exceedingthe specified tire loadrating orthe permissible speedrating may leadtotiredamageandtothe tires bursting.
#Therefore, only use tire types and sizesapprovedforyourvehicle model.
#Observethe tire loadrating and speedratingrequiredforyourvehicle.
*NOTEVehicle and tire damagethroughtire types and sizesthat havenot beenapproved
For safetyreasons, onlyuse tires, wheelsand accessories which havebeen speciallyapprovedbyMercedes-Benzforyourvehicle.
These tires are specially adaptedtothe con‐
trol systems, such as ABS, ESP®and4MATIC, and marked asfollows:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended(run-flat tire onlyfor certain wheels)
RMO1 = Mercedes-Benz Original (only cer‐tain AMG tires)
Certaincharacteristics, such as handling,vehicle noise emissions, fuel consumption,etc. mayotherwise be adversely affected.Furthermore,other tire sizes couldresult inthe tiresrubbing againstthe body and axlecomponents when loaded. This couldresultin damagetothe tire orthevehicle.
454Wheels and tires

Observethefollowing when selecting, installingandreplacing tires:
ROnly use tires and wheels ofthe same type(summer tires, winter tires, MOExtendedtires) andthe same make.
ROnly install wheels ofthe same size on oneaxle (left andright).
It is only permissibletoinstall a differentwheel size intheevent of aflat tire in ordertodrivetothe specialistworkshop.
ROnly install tires ofthe correct size ontothewheels.
RVehicles with a tire pressure monitoringsystem:All installed wheels must be equip‐ped with functioning sensorsforthe tirepressure monitoring system.
RAttemperatures below 45 °F (7 °C), use win‐ter tires or all-season tires marked M+Sforall wheels.
Winter tires bearingtheMsnowflake sym‐bol in additiontothe M+S marking providethe best possible grip in wintryroad condi‐tions.
RFor M+S tires, only use tires withthe sametread.
RObservethe maximum permissible speedforthe M+S tires installed.
Ifthis is belowthevehicle's maximum speed,this must be indicatedbyan appropriatelabel inthe driver'sfield of vision.
RBreak in new tires at moderate speedsforthefirst 60 miles (100 km).
RReplacethe tires after sixyears atthe latest,regardless ofwear.
RWhenreplacing with tires that do notfea‐turerun-flatcharacteristics:vehicles withMOExtended tires are not equipped with aTIREFIT kit atthefactory.Equipthevehiclewith a TIREFIT kit afterreplacing with tiresthat do notfeaturerun-flatcharacteristics,e.g. winter tires.
For more information on wheels and tires, con‐tact aqualified specialistworkshop.
Be suretoalso observethefollowing furtherrelated subjects:
RNotes on tire pressure (→page 435)
RTireand Loading Information placard(→page442)
RTiresize designation, load-bearing capacity,speedrating and load index (→page449)
RTirepressuretable (→page 437)
Notes onrotating wheels
&WARNINGRisk of injurythrough differ‐ent wheel sizes
Interchangingthe front andrear wheels ifthewheels or tires havedifferent dimensionsmay severely impairthe drivingcharacteris‐tics.
The wheel brakes or wheel suspension com‐ponents may also be damaged.
#Rotatefront andrear wheels onlyifthewheels and tires are ofthe same dimen‐sions.
456Wheels and tires

Setting upthefoldingchock
Preparingthevehiclefor a wheelchange
Requirements:RTherequired tire-changetool kit isavailable.Ifyourvehicle is not equipped withthe tire-changetool kit, consult aqualified specialistworkshoptofind out about suitabletools.
RThevehicle is not on a slope.
RThevehicle is on solid, non-slippery and levelground.
#The electric parking brake is applied man‐ually.
#Movethe front wheelstothestraight-aheadposition.
#Shiftthe transmissiontoposition].
#Vehicles with AIRBODYCONTROL orMAGICBODYCONTROL:Setthe normalvehicle level.
#Switchoffthe engine.
#Make surethatthe engine cannotbestarted.
#Placechocksorother suitable items underthe front andrear ofthe wheelthat is diago‐nally oppositethe wheelyou wishtochange.
#Removethe hub caps if necessary(→page 458).
#Raisethevehicle (→page 459).
Removing and installing hub caps
Requirements:RThevehicle is preparedfor a wheelchange(→page 458).
Plastic hub cap
#Toremove:turnthe center cover ofthe hubcap counter-clockwise andremovethe hubcap.
#Toinstall:make surethatthe center cover ofthe hub cap is turned counter-clockwise.
458Wheels and tires

RThe jack must be placed on afirm,flat andnon-slip surface. If necessary,use a large,flat, load-bearing, non-slip underlay.
RThefootofthe jack must be positionedverti‐cally underthe jack support point.
Rules of conduct whenthevehicle israised:
RNever placeyour hands orfeetunderthevehicle.
RNever lie underthevehicle.
RDo notstartthe engine and do notreleasethe electric parking brake.
RDo not open or close any doors orthe trunklid.
#Usingthe lug wrench, loosenthe wheel boltsonthe wheelyou wishtochangebyaboutone full turn. Do not unscrewthe bolts com‐pletely.
Position of jack support points
&WARNINGRisk of injuryfrom incorrectpositioning ofthe jack
Ifyou do not positionthe jack correctly atthe appropriate jacking point ofthevehicle,the jack could tip withthevehicleraised.
#Only positionthe jack atthe appropri‐ate jacking point ofthevehicle. Thebase ofthe jack must be positionedver‐tically underthe jacking point ofthevehicle.
460Wheels and tires

*NOTEVehicle damage fromthe jack
Ifyou do not positionthe jack correctly atthe appropriate jack support point ofthevehicle,the jack could tipover withthevehi‐cleraised.
#The jack is designedexclusivelyforjacking upthevehicle atthe jack sup‐port points.
#Taketheratchet wrench out ofthe tire-changetool kit and place it onthe hexagonnut ofthe jack sothatthe letters "AUF" arevisible.
#Position jack2at jack support point1.
#Turnratchet wrench3clockwise until jack2sits completelyon jack support point1andthe base ofthe jack liesevenly ontheground.
#Continuetoturnratchet wrench3untilthetire israised a maximum of1.2 in (3 cm) offthe ground.
#Loosen andremovethe wheel (→page 461).
Removing a wheel
Requirements:RThevehicle israised (→page 459).
Mercedes-AMGvehicles:observethe notes inthe Supplement. Otherwise,you may notrecog‐nize dangers.
Whenchanging a wheel,avoid applying anyforcetothe brake discs, sincethis could impairthelevel of comfortwhen braking.
*NOTEDamagetothreading from dirt onwheel bolts
#Do not place wheel bolts in sand or ona dirty surface.
#Unscrewthe uppermost wheel bolt com‐pletely.
Wheelsand tires461

Operatingfluids
Notes on operatingfluids
Mercedes-AMGvehicles:observethe notes inthe Supplement. Otherwise,you mayfailtorec‐ognize dangers.
&WARNINGRisk of injuryfrom operatingfluids harmfulto your health
Operatingfluids may be poisonous and harm‐fulto your health.
#Observethetext onthe original con‐tainers when using,storing or disposingof operatingfluids.
#Alwaysstore operatingfluids sealed intheir original containers.
#Alwayskeepchildrenawayfrom operat‐ingfluids.
&WARNINGRisk offireorexplosion fromfuel
Fuels are highlyflammable.
#Fire, openflames, smoking and creationof sparksmust beavoided.
#Switchoffthe ignition and, ifavailable,thestationary heater, before and whilerefuelingthevehicle.
&WARNINGRisk of injuryfrom fuels
Fuels are poisonous and hazardousto yourhealth.
#Do not swallow fuel or let it come intocontact with skin,eyes or clothing.
#Do not inhale fuelvapor.
#Keepchildrenawayfrom fuel.
#Keep doors and windowsclosed duringtherefueling process.
Ifyou orother people come into contact withfuel, observethefollowing:
#Immediatelyrinse fuel offyour skin withsoap andwater.
#If fuel comes into contact withyoureyes, immediatelyrinsethemthor‐
oughly with cleanwater.Seek medicalattention immediately.
#Ifyou swallow fuel, seek medical atten‐tion immediately.Do not inducevomit‐ing.
#Change immediately out of clothingthathas come into contact withfuel.
+ENVIRONMENTALNOTEEnvironmentalpollution causedbyenvironmentally irre‐sponsible disposal
#Dispose of operatingfluids in an envi‐ronmentallyresponsible manner.
Operatingfluids includethefollowing:
RFuels
RLubricants
RCoolant
RBrakefluid
RWindshieldwasherfluid
RClimate control systemrefrigerant
468Technical data

Mercedes‑MaybachCapacity
S 650 Mercedes-May‐bach11.1US qt(10.5 liters)
S 560 4MATICMercedes-Maybach9.5 US qt (9.0 liters)
Notes on brakefluid
Observethe notes on operatingfluids(→page 468).
&WARNINGRisk of an accident duetovapor pocketsforming inthe brake sys‐tem
The brakefluid constantly absorbs moisturefromthe air. This lowersthe boiling point ofthe brakefluid. Ifthe boiling point istoo low,vapor pockets mayforminthe brake systemwhenthe brakes are applied hard.
This causesthe braking effecttobeimpaired.
#Havethe brakefluidrenewed atthespecified intervals.
Havethe brakefluidregularlyreplaced at aqualified specialistworkshop.Only use brakefluid approvedbyMercedes-BenzaccordingtoMB-Freigabe or MB-Approval 331.0.
You can obtain further information on brakefluidinthefollowing places:
Rinthe Mercedes-Benz SpecificationsforOperating Fluids
-at http://bevo.mercedes-benz.com
-inthe Mercedes-Benz BeVo App
Rat aqualified specialistworkshop
Coolant
Notes on coolantObservethe notes on operatingfluids(→page 468).
&WARNING‑ Risk offireand injury fromantifreeze
If antifreeze comes into contact withhotcomponent parts inthe engine compart‐ment, it may ignite.
#Allowthe enginetocool down beforeadding antifreeze.
#Makesurethat no antifreeze spills outnexttothefiller opening.
#Thoroughly clean off any antifreezefrom component parts beforestartingthevehicle.
*NOTEDamagecausedbyincorrect cool‐ant
#Only add coolantthat has been pre‐mixed withtherequired antifreeze pro‐tection.
472Technical data